MLX90313 Programmable IR sensor Interface This device is a general purpose programmable sensor amplifier/ signal conditioner, with dual low noise, low offset, fully programmable amplifier chain, 12 bit on-chip ADC, powerful signal conditioning and linearisation unit, multiple output options, ISP I/O-configuration and analog settings, accessible by SPI serial interface, wide supply voltage range from 4.5V-80V and wide application range (including thermopile + thermistor amplification chain, digital or analog, linear, ambient-compensated IR sensor interface).
The MLX90313 is a versatile in‑circuit programmable interface for infrared sensors and thermistors. It provides signal conditioning, linearisation, ambient temperature compensation, and multiple output formats such as SPI digital, analog, and PWM.
The document includes functional diagrams, electrical specifications, pin‑out tables, pin descriptions, and physical dimensions, along with application notes for automotive and general‑purpose sensor integration.
| Common‑mode input range (CMIR) | -0.1 VDD – 3 V |
|---|---|
| CMRR (f < 100 kHz) | 75 dB |
| Power‑supply rejection ratio (PSSR) | 75 dB |
| ADC resolution | 12 bit |
| DAC resolution | 8 bit |
The standard package is a 20‑pin SOIC.